In line with the erotic game by Lilim Darkness.

Someone search for a summer house for a vacation, unaware of the perils they are going to undergo throughout their stay. A college doctor who accompanies them intends on blackmailing among the women in the group because he got hold of her diary. Relationships are blurry and chaos starts when one of them dies. Escaped convicts have entered the vicinity and still have destroyed the key bridge, rendering they will not able to escape. Now trapped and scared, what are they going to do?